Alexander the Great, it is related in the Shahnama that a very
powerful King of India named Kaid, satiated with war, and having
no enemies without, or rebellious subjects within his kingdom,
thus addressed his minister Sassa.

"Day and night my mind is harassed with the thoughts of war
and strife; when in the hours of the night sleep overpowers me, I
dream of nothing but battlefields and conquests, and in the
morning, when I awake, I still think over my imaginary combats and
victories. Now you are well aware that I have no longer one
single enemy or rebel in my whole dominions with whom to
contend. It is utterly repugnant to justice and common sense,
to go to war without any cause. If I were to do so God would be
displeased with me, and a severe retribution for my evil deeds
would soon overtake me, even in this world, for is it not said
that a kingdom governed by falsehood and oppression is void of
stability, and it will soon pass away. Tell me, then, O Sassa,
for great is thy wisdom, what am I to do in order to regain my
peace of mind, and obtain relief from my present state of
weariness and disgust?"

Sassa hereupon bethought himself of a rare game, the invention
of an ancient Grecian sage, by name Hermes, which had recently
been introduced into India by Alexander and his soldiers, who
used to play it at times of leisure. Sassa procured and modified
the game and board from 56 pieces and 112 squares to 32 pieces
and 64 squares, and explained it to the king, who practised it with
both satisfaction and delight, Sassa's stipulation of a reward of
a grain of corn doubled again and again 64 times, which was at
first deemed ridiculous, was found to amount to